A security researcher with expertise in rootkits has built a working prototype of new technology that is capable of creating malware that remains "100 percent undetectable," even on Windows Vista x64 systems.

ADVERTISEMENT Rutkowska plans to discuss the idea and demonstrate a working prototype for Windows Vista x64 at the SyScan Conference in Singapore on July 21 and at the Black Hat Briefings in Las Vegas on Aug. 3.

The Black Hat presentation will occur on the same day Microsoft is scheduled to show off some of the key security features and functionality being fitted into Vista.

Rutkowska said the presentation will deal with a "generic method" of inserting arbitrary code into the Vista Beta 2 kernel (x64 edition) without relying on any implementation bug.